The invention provides a composition for improving sleep and vision and an application thereof. The composition is prepared from, by weight, 2000 parts of probiotics enzymes, 3-10 parts of dateplum persimmon, 3-5 parts of Chinese yam, 3-5 parts of hawthorn, 3-5 parts of herba portulacae, 3-5 parts of smoked plum, 3-5 parts of pawpaw, 3-5 parts of ginkgo, 3-5 parts of white hyacinth bean, 3-5 parts of flower of white hyacinth bean, 3-5 parts of longan aril, 0.5-1 part of gamma-aminobutyric, 3-5 parts of huckleberry, 0.5-2 parts of xanthophyll, 3-5 parts of periostracum cicada, 5-7 parts of dilapidated walls ganoderma lucidum spore powder, 5-7 parts of ginseng, 10-25 parts of medlar, 10-25 parts of poria cocos and the like. The composition is rich in various nutritional ingredients necessary to human body, has various medicinal compositions at the same time, can be subjected to all-around nursing to function of human body from six aspects of soothing the nerves, improving acuity of vision, tonifying spleen, helping digestion, relaxing the bowels and nourishing the body, and has very good capacity of improving sleep and vision.